Automatic metal-feeding device for torches



A. F. JENKINS. AUTOMATIC METAL FLEDING DEVICE FOR TORCHES.

APPLICATION FILED MAY s,- 1918.

RENEWED FEB. 18,1922.

Patented Apr. 11, 1922.

' ma eaa w 2 fl k I 4 ATTORNEY error cries;

AUTQMATIC METAL-FEEDING- DEVICE FOR MHES.

Application filed. May 8, 1918,8erie1'1l'o. 233,806.

To all whom, it may concern:

Be it known that l, ALEXANDER F. JEN- KINS, e citizen of the United States, and a resident of Baltimore, in the State of Mary- 5 land, have invented certain new and useful improvements in Automatic Metal-Feeding Devices for Torches, of which the following is a specification; Y

This invention relates to cry-acetylene welding and other torches and has to deal more particularly with the method ofend means "for automatically feeding metal particles to the weld or to the surface on which u metal coating is to-he deposited.

The general object of the present inven- 1 is to gjrovide uv simple, novel and effi ens for end method of supplying 1st. in granular form to the ports to be welded, or to a motel part on which at metal a is he deposited, the feeding means-being 1 attachmen or essential part of the torch,

separate instrument, so that the opcen eesily, quickly and efficiently supply motel to work with a much better An effect then when u solid rod consists in preferebl g prew l J- lie-lee, end when the metal I 3 mid, or by any other suitthe result that the per 'ticles face, i uncle he influence ofedditionul from the torch flame there is it quichemetic-n the particles with-the meter being welded or filledc emalg'ernetes more thoroughly then when the solid rod is used, end furthermore thet the motel does not have to be puddled in the way neoessury with Ht solid rod to 0mm a y i this heingfdone by holding the valve 18 open amalgamation.

flow to the fle-mexto a point sufic'ient to keep the demo from extinguishing, es otherwisejf thehi'gh yressure of the flame would'blow 503 the perti es sway from meters, As soon 1 es the particles udhere the flame isfrestored,

-- lowing description end claiims token ioncon the flame.

ctr-ll to be welded or filled,

heated, the granulated nictztl' iull. pressure of the oxygen'will elweysbe edhereto heated sur-' Practice shows that inetel edded in this mannerore closed open. e

If desiredthespruying of metel can telre It is preferable, et the time-of feeding. the motel particles, to cut down the gas Specification of Letters Patent. Partgnteqfl A 111 1922 I Renewed February 18, 1922. semi N9. 537,646.

which illustrates one embodiment of which the invention is capable.

The figure is" e side view of a torch equipped with the automatic metal particle feeding device.

Referring to the drawing, 1 designates the flame tip or nozzle of the torch or blow pipe towhich acetylene gas and oxygen are supplled through tubes 2- und 3, although other combustible fluids" may be employed.- The gas and oxygen mix in the tube 4 to which the nozzle 1 is attached. The torch has e bundle 5 through which the gas and oxygen conduits extend, and at the rear end of the handle are mixture regulating valves 6 and 7 in -the tubes 2 and 8. At the front end of the handle the tubes have trigger valves 8 end 9,euch normally held open by a spring 10. "ii-he trigger 11 of valve 8 he's a cam 12 which engages the trigger 13 of valve 9 so as to close the letter es the operator closes the valve 8, for the purpose of regulating leads 21 pipe 16 which terminetes so ejector nozzle 17. 'lhopipc is with the oxygen condult at; point on the inlet side of ti o regulating valve 7., so that the available for the spraying device. in the pipe 16 is at controlling valve 18 provided .vvith utrigger 19 that is under the tension or thevelveselosing spring 20 and that is .udaptedto he engaged by the ceni 21 on the so that when theyfolves 8- end 9 trigger 13 the spraying valve 18 will be while the wolves Bend 9 are open. But

{it is prefereblefto. spray-the metal particles. "while the home is not operating et full force (as showninthe drawing), as other-' wise the perticles might be blown away to some extent. The "demo is out down by opcrating the trigger 11 just low enough to v prevent. extinguishing, and this takes place simultaneously with the opening of the" motel feed; 1 In the figure the valves 8 end 9 1 ore closed nd'the vulve 18 opened.

In usefl; demo usedto .prehest' the.

v Patent:

work, and when; the latter is suficiently heated, the flame is manually reduced and the metal particle feed simultaneously opened. The particles will now adhere to the work, andwhen asuflicient amo'untof particles are sprayed the feed is stopped and the flame restored to complete the weld method of operation will be readily understood by those skilled in the art to which the invention appertains, and while I have described the principle of operation, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes maybe made when desired as fall within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secure by Letters 1. An apparatus of the class described,

at one si eithereof for directing a stream of metal particles toward the work which stream converges toward the flame and im pinges on the work directly in front of the flame rojecto'r, a

a 2. he combination of a blow pipe or torch utilizing as, with a device associated therewith for ceding metal particles to the work on which the flame is directed, and means for automatically cutting down the gas flow when the device is feeding.

3. A blow pipe or torch comprising a valve controlling the flow of gas, adevice for feeding metal particles, a valve for the-said device, and means for causing one valve to open while the other closes, or vice versa.

4. In an apparatus of the class described, a flame nozzle, means for supplying gas thereto a valve controlling the said means, a meta particle discharging nozzle at one side of the flame nozzle for directinga stream of metal particles toward the work which stream converges toward the flame. and impinges on the work directly in front of the antenatmentioned means, and means for opening one valve while closing the other.

6. An automatic metal feeding blow pipe or torch including a valve controlling the feed of metal articles, s ring means normally holding t e valve c osed, a gas valve, spring'means normally holding the gas valve open, and means for opening the first valve by the closing movement'ot the second.

7 An automatic-metalfeeding blow pipe or torch including a metal spraying device, a flame tip, a gas supply means connected with the tip, a valve for the said means, an oxygen suppl means connected with the tip, a valve orthe last means, a connection between the said oxygen supply means and the said spraying device, a valve on the said connection, and means whereb the lastmentioned valve opens while the ot er valves move closed, y l x 8. An automatic metal feeding blow pipe or torch including a metal spraying device, a flame tip, a gas supplymeans connected with the tip, a valve for the" said means, an oxygen supply means connected with the tip, a valve for the last'means, a connectionbetween the said oxygen supply means and the said spraying device, a valve on the said connection, means whereby the last-mentioned valve opens while the other valves moveclosed, a regulating valve for the gas,

and a valve for regulatin the oxygen pressure for the tip withouta acting the oxygen pressure for the 'sprayin device.

9. The combination with a torch having a flame tip, of an adjustable device at one side thereof for feeding metal particles to that portion of the workupon which the flame impinges. I

ALEXANDER 'FEREDEMKIEK JENFKENS. Witnesses 4 SAMUEL P. Wmn,

C.'B. Rnnrmrn, 

